Means for surfacing sand and the like



NOV. 8, N DE; JQY

MEANS FOR SURFACING SAND AND THE LIKE Filed March 28 1950 Mali 06mgPatented Nov. 8, 1932 UNITED STATES PATENT. OFFICE NICK DE JOY,;OFCANTON, OHIO; HENRY A; SCHRANTZ, ADMINISTRATOR OF SAID NICK DE JOY,nnciiAsnn; AssIGNon TO THE METROPOLITAN PAVING BRIcK COMPANY, or CANTON,0310, A conronA'noNor OHIO I MEANS roa SURFACING sANn AND THE LIKEApplication filed March 28, 1930. Serial No. 439,812.

My invention relates to improvements in surfacers for sand and the likeand particularly to surfacers for sand cushions used in the building ofbrick paved roads.

It is a usual practice in the building of v brick paved roadsto'firstlay a foundation 1o sand is spread as evenly or bed of concretewith vertically projecting curbs extending longitudinally at the edgesof the bed. Next a relatively thin cushion of as possible over the bed,and then the bric s are laid on top of this cushion. o

The surfaces now in use for surfacing such sand cushions usually eachcomprise a transverse surfacing bar having guide rollers rolling on thetop of the concrete curbs or on forms extending longitudinally of theroad at its edges.

The difliculty experienced in using such a surfacer is that the topsurface of the curb or form does not run true with the surface of theconcrete bed upon which the sand cushion is spread. Consequently, whensuch a surfacer is drawn over the sand, relatively great variations inthe thickness of the cush' ion result due to discrepancies in ,the topsurface of the curb or form.

A serious disadvantage results when the bricks are laid upon the sandcushion, for.

the reason that certain of the bricks do not have a proper thickness ofsand between their lower surfaces and the concrete bed, and aretherefore not able to properly withstand the shocks and strains receivedby them incident to heavy trafiic passing over the road.

Difliculty is further experienced with these surfacers in surfacing thesand at streetor road intersections, as a special form must be built toserve as a guide across the intersection, or the surfacing must be doneby hand at that point.

The principal object of this invention is to provide a sand surfacerwhich will utilize the surface of the concrete bed itself as a guideforthe surfacing bar,-thereby obviating the variations in thickness ofthe sand cushion due to variations between the surface of the bedandthat of the curbs or forms, and therebyeliminating the diflicultylongitudinally extending members,a surfac ing bar supported by'saidmembers and ex tending. laterally therebetween, roller carriages onwhich the longitudinal.v members are pivotally mounted, and rollers onwhich the carriages are journaled, the rollers having sharpened orbevelled outer peripheries for penetrating the sand cushion or coveringEng rolling upon the surfaceof the concrete A preferred embodiment ofthe improvements is illustrated in the accompanying drawing forming parthereof, in which.

Figure 1 is a top plan view of one embodiment, of the improved surfacerhereof;

Fig. 2 is a cross section of a road bed with a sand cushion or coveringshowing the surfacer in operative position;

Fig. 3 is a sectional view of the road bed'as on line 33, of Fig. 3,showing an end elevation of the surfacer; and

.Fig. 4 is a fragmentary sectional view-as on line 44, Fig. 3.

Similar numerals refer to similar parts throughout-the several views. 7

The improved surfacer is indicated generally at 9 and includes laterallyspaced longitudinally extending channel supporting members 10 which aredetachably connected at their central portions,in a manner hereinafterto be described, to a bar 11 extending laterally between them, the barbeing positioned so that its longer cross sectional dimension issubstantially vertical.

The bottom surface .12 of the bar 11 is longitudinally curved to thedesired contour of the sand cushion, and is preferably bevelled.An-angle plate 13 is secured about the lower edge of the surface 12 andextends throughout the length of the bar. The apex of the angle plate 13provides a sharp and durable edge for engagement with the sand cushion14 supported by the concrete foundation 15, and laterally restricted bythe curbs 16. A U-shaped wearing plate 17 is secured to each end portionof the bar 11, as shown in Figs. 3 and 4, in such a manneras to protectthe sides and top surface thereof.

Means for varying the elevation of the bar 11 are provided by angleplates 18, each including a leg 19 secured to a web of one of thechannel members 10 at a point longitudinally spaced from the center ofthe channel member, and each angle plate 18 further includes aninturn-ed downwardly depending leg-20, andthe legs 20- of the angleplates 18 secured on each channel member are spaced apart a sufficientdistance to receive with a sliding fit one end of the bar 11 having awearing plate 17 thereon.

The bar 11 may be det-achably secured at each end between the angleplates 18 and vertically adjustable therewith by means of a bolt 21passing through each end of the bar and through vertical slots 22 formedin the legs 20, and a nut 23 is screwed on the end of each bolt forengagement with a leg 20.

The bar 11 is further secured to the members 10 by means of threadedbolts 24 passing vertically downward through the webs of the members 10and through the top of the wearing plates 17 into threaded engagementwith nuts 25 fixedly imbedded in the top portion of each end of the bar11 beneath the plates 17. Lock nuts 26 and 27 are provided on each bolt24 below and above the web of each member 10 for locking the bolttherewith in any desired position.

It will be seen that the bar 11 may be adjusted vertically with respectto the members 10 by loosening the nuts 23 from engagement with theangle plates 18 and by loosening the nuts 26 and 27 from engagement withthe members 10, when the bolts 24 may be turned to raise or lower thebar with respect to the members 10, the bolts 21 sliding in the slots22.

The bar may then be locked in a desired position by tightening the nuts23 and the lock nuts 26 and 27.

A U-shaped supporting bracket 28 is secured to the web of each member 10at each end thereof, and each bracket 28 includes vertically dependingspaced flanges 29. A channel member 30 extends longitudinally of thesupporting member 10 and is pivotally mounted intermediate its ends asat 31 upon the lower ends of the flanges 29 of each bracket and thechannel members 30 serve as carriages for laterally spaced guiderollers, one pair of which is journaled in each end of each channelmember 30, as at 33. The outer periphery of each guide roller 32ext-ends below the bar 11 and is bevelled or chamfered as best shown inFig. 2 so as to produce a sharp edge for cutting through the sandcushion and rolling on the surface of the concrete bed.

Ropes or cables 34 are secured to the surfacing bar 11 as drawing thesurfacer over the sand manually or otherwise.

Braces 36 each extending angularly between the bar 11 and a member 10may be provided as shown to insure a rigid structure.

In the operation of the improved surfacer, the sand having been spreadupon the concrete as shown in Figs. 2, 3, and 4, the structure is placedupon the sand with the guide rollers 32 just inside the curbs 16. Bymeans of bolts 24 the surfacing bar may be vertically adjusted above thefoundation, in the manner hereinbefore described, to give any desiredthickness of sand cushion. The surfacer is then pulled over the road bedby means of the ropes 34, the angle plate 13 smoothing over or surfaceleveling the sand cushion, and the weight of the surfacer will cause thesharp edges of the rollers 32 to penetrate the sand and roll directlyupon the surface of the foundation 15. Thus a sand cushion of relativelyuniform thickness is obtained for the reason that the bar 11 is properlyspaced relative to the upper surface of the concrete foundation.

It will be seen that the bevelled edges of the rollers will penetratethe sand without materially altering the contour of the surface thereof.

When the guide rollers pass over minor irregularities in the surface ofthe concrete as shown at A in Fig. 3, the efiect upon the surfacing baris materially reduced by reason of the pivotal mounting of the rollercarriage, and it has been found in actual practice that the bar is notdisturbed to any prac tical extent by such irregularities.

It will be seen that the present surfacer may be used for surfacing sandthroughout the length of a road bed without regard to the intersectionsof other roads, and therefore possesses an advantage over thosesurfacers which depend upon curbs or forms for their guiding means.

A more important advantage, however, is that the use of the presentsurfacer results in a sand cushion of substantially uniform thickness,which insures that each brick shall be properly cushioned to resist theshocks and.

strains received by it, and the net result is that a brick road built ona sand cushion surfaced by the apparatus hereof is smooth and has arelatively long life.

It is understood that various modifications of the surfacer describedherein may be made at 35 for. the purpose of" without departing from thescope of the claims.

I claim: 1. A sand surfacer for use on a road be having a sand covering,the surfacer including laterally spaced rollers, and a sand surfacingbar supported on the rollers and extending laterally of the road bed,each roller having a sharp periphery extending below the surfacing barand adapted for penetrating the sand covering and rolling on the road 2.A sand surfacer for use on a road bed having a sand covering,thesurfacer including laterally spaced rollers, a sand surfacing barextending laterally of the road bed, and means vertically adjustablymounting the surfacing bar upon the rollers, each roller having a sharpperiphery extending below the surfacing bar and adapted forpenetratlfilg the sand covering and rolling on the road 3. A sandsurfacer for use on a road bed having a sand covering, the surfacerincluding a pair of laterally spaced longitudinally extending supportingmembers, a laterally extending surfacing bar connected .at each end withone of the supporting members intermediate the ends thereof, a carriagepivotally connected with each supporting member on each side of thesurfacing bar and extending longitudinally of the supporting member, anda roller journaled in each carriage at each side of the pivotalconnection between the carriage and the supporting member, each rollerhaving a sharp periphery extending below the surfacing bar and adaptedfor penetrating the sand covering and rolling on the road bed. Intestimony that I claim the above, I have hereunto subscribed my name.

NICK DE JOY.

